An even better idea, if you're preferential to radio DJs: have a recording setup and Shazam-like recognition system where a Spotify playlist or queue is made from what's being played. I was considering doing that as a project. The song choice by the radio DJs is the real value, and I sometimes prefer their playlists over my recommended daily mix playlists or whatever Spotify selects on the generated radio stations. The highest streaming quality option on Spotify is superior in audio quality to regular radio and the digital streaming options from radio websites. StationHead has been trying to do something similar, but they still include the social live host aspect.